Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
SPECS: H-2, High Speed tool steel.
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Customer ratings for REIFF & NESTOR COMPANY 8-32 PLUG THREE-FLUTE TAP
Number of ratings: 1
From brownells.com: 1
Average rating: 5
Did the Job Well(12/01/2016)
I utilised the tap to tap a 0.150" hole in my Beretta 92fs slide, for the installation of the third screw for an aftermarket sight and rail system. I utilised a #31 Carbide Drill from Brownells. Starting the tap off in my drill press to ensure it was perfectly aligned with the drilled hole I then finished the job off by hand. This tap did the job and a practice tap well.
Product no.: 748101832 REIFF & NESTOR COMPANY 8-32 PLUG THREE-FLUTE TAP Mfr Part: 12622 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
Product no.: 748101422 REIFF & NESTOR COMPANY 1/4-22 PLUG THREE-FLUTE TAP Mfr Part: C32425 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
35.9GBP96£35.90
*
Delivery time approx. 7-14 days. More than 10 pieces in USA warehouse
The "PERFECT CUT" taps offer superior performance with exceptional roundness, thread spacing, and durability, resulting in faster tapping and reduced breakage.
Three-flute design distributes tapping stress over a larger area, allowing for easier starts and straighter tapping by hand, ideal for hard or tough steels.
Two-flute taps provide ample chip space and are effective for both machine and hand tapping, especially suitable for soft steels.
Product no.: 748102640 REIFF & NESTOR COMPANY 6-40 BOTTOM THREE-FLUTE TAP Mfr Part: 12423 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
The "PERFECT CUT" Premium Tap by Reiff & Nestor Company offers exceptional quality and durability due to strict tolerances and quality control in manufacturing.
Designed for efficiency and longevity, the tap ensures faster tapping, reduced breakage, and produces the finest threads.
Available in both three-flute and two-flute versions, it caters to different materials and preferences, with three-flute being stronger for hard steels and two-flute offering more chip space for soft steels.
Product no.: 748102832 REIFF & NESTOR COMPANY 8-32 BOTTOM THREE-FLUTE TAP Mfr Part: 12623 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
13.9GBP35£13.90
*
Delivery time approx. 7-14 days. More than 10 pieces in USA warehouse
The "PERFECT CUT" taps offer exceptional quality and durability due to strict quality control and tight tolerances in manufacturing.
Three-flute taps distribute tapping stress over a larger area, making them easier to start and keep straight, ideal for hand tapping and harder steels.
Two-flute taps have more chip space, beneficial for tapping soft steels and popular for both machine and hand tapping.
Product no.: 748202353 REIFF & NESTOR COMPANY 3-56 BOTTOM TWO-FLUTE TAP Mfr Part: 10923 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
The "PERFECT CUT" taps offer superior performance with exceptional thread quality, faster tapping, and reduced breakage due to precise manufacturing controls.
Three-flute taps distribute stress over a larger area, making them easier to start and keep straight, ideal for hand tapping and hard steels.
Two-flute taps have larger chip space, beneficial for tapping soft steels, and are versatile for both machine and hand tapping.
Product no.: 748202642 REIFF & NESTOR COMPANY 6-48 PLUG TWO-FLUTE TAP Mfr Part: S12483 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
29.9GBP10£29.90
*
Delivery time approx. 7-14 days. More than 10 pieces in USA warehouse
The "PERFECT CUT" taps offer superior performance due to exceptional care and quality control in manufacturing, resulting in faster tapping and reduced breakage.
These taps come in two styles, with the premium three-flute design distributing stress over a larger area, ideal for hard steels, and the two-flute design providing more chip space for softer steels.
Reiff & Nestor Company has been producing these high-speed steel taps since 1912, maintaining tight tolerances on the ground threads for the finest threading results.
Product no.: 748202842 REIFF & NESTOR COMPANY 8-40 PLUG TWO-FLUTE TAP Mfr Part: S12993 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
The "PERFECT CUT" taps offer superior performance due to exceptional quality control and tight tolerances in manufacturing.
Designed for durability and efficiency, these taps reduce breakage, speed up the tapping process, and produce finely threaded holes.
Available in two styles, the three-flute taps are ideal for hard steels, while the two-flute taps are better for soft steels and provide more chip space.
Product no.: 748202843 REIFF & NESTOR COMPANY 8-40 BOTTOM TWO-FLUTE TAP Mfr Part: S12934 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
35.9GBP10£35.90
*
Delivery time approx. 7-14 days. More than 10 pieces in USA warehouse
The "PERFECT CUT" taps offer superior performance due to exceptional care and quality control in manufacturing, resulting in faster tapping and longer-lasting taps.
These taps are designed with ground threads held to tight tolerances, ensuring that all teeth cut equally and produce the finest threads.
Available in both two-flute and three-flute options, they cater to different materials and preferences, with two-flute taps being ideal for soft steels and three-flute taps being stronger for hard or tough steels.
Product no.: 748203642 REIFF & NESTOR COMPANY 6-40 PLUG TWO-FLUTE TAP Mfr Part: 12322 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
12.9GBP12£12.90
*
Delivery time approx. 7-14 days. More than 10 pieces in USA warehouse
PERFECT CUT taps offer superior quality with incredibly tight tolerances, ensuring faster tapping, longer tap life, reduced breakage, and finely crafted threads.
The Premium Two-Flute Taps are ideal for soft steels, providing a balance between stress distribution and chip space, suitable for both machine and hand tapping.
Made by Reiff & Nestor Company since 1912, these high-speed steel taps are praised for their durability and precision in threading tasks.
Product no.: 748001648 REIFF & NESTOR COMPANY 6-48 PLUG THREE-FLUTE TAP Mfr Part: S12495 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
The "PERFECT CUT" taps offer superior performance due to exceptional care and quality control in manufacturing, resulting in faster tapping, increased durability, and reduced breakage.
Three-Flute Taps distribute tapping stresses over a triangular area, making them easier to start and keep straight, ideal for hand tapping and better suited for hard or tough steels.
Two-Flute Taps have larger flutes providing more chip space, beneficial when tapping soft steels and are versatile for both machine and hand turning.
Product no.: 748001840 REIFF & NESTOR COMPANY 8-40 PLUG THREE-FLUTE TAP Mfr Part: S13095 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
The "PERFECT CUT" taps offer exceptional quality and durability due to tight tolerances and quality control, resulting in faster tapping and reduced breakage.
Three-flute taps distribute stress over a triangular area, making them easier to start and keep straight, and are stronger for hard or tough steels.
Two-flute taps provide more chip space, beneficial for tapping soft steels, and are versatile for both machine and hand tapping.
Product no.: 748002648 REIFF & NESTOR COMPANY 6-48 BOTTOM THREE-FLUTE TAP Mfr Part: S12496 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
The "PERFECT CUT" taps offer superior performance due to tight tolerances in roundness and thread spacing, resulting in faster tapping, less breakage, and finer threads.
Three-flute taps distribute tapping stress over a triangular area, making them easier to start and keep straight by hand, and are stronger for hard or tough steels.
Two-flute taps spread the stress over two larger flutes, providing more chip space which is beneficial when tapping soft steels, and are also effective when hand turned.
Product no.: 748002840 REIFF & NESTOR COMPANY 8-40 BOTTOM THREE-FLUTE TAP Mfr Part: S13096 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
Product no.: 748202352 REIFF & NESTOR COMPANY 3-56 PLUG TWO-FLUTE TAP Mfr Part: 10922 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
The "PERFECT CUT" taps offer superior performance due to exceptional care in manufacturing and quality control, resulting in faster tapping, increased durability, and finely crafted threads.
These taps are available in two styles, with the Premium Three-Flute Taps providing easier starts and straighter tapping, and the Premium Two-Flute Taps offering more chip space, beneficial for soft steels.
Made by Reiff & Nestor Company since 1912, the taps are crafted from H-2 High Speed tool steel, ensuring high-quality and reliable tools for various tapping needs.
Product no.: 748202643 REIFF & NESTOR COMPANY 6-48 BOTTOM TWO-FLUTE TAP Mfr Part: S12484 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
The "PERFECT CUT" taps offer superior performance due to the manufacturer's commitment to care and quality control, resulting in faster tapping and durable tools.
Three-flute taps are stronger and ideal for hard or tough steels, while two-flute taps are better for softer steels and provide more chip space.
Reiff & Nestor Company's taps are made from high-speed tool steel (H-2) and have been crafted with precision since 1912.
Product no.: 748101640 REIFF & NESTOR COMPANY 6-40 PLUG THREE-FLUTE TAP Mfr Part: 12422 Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
The "PERFECT CUT" taps offer superior performance due to precise manufacturing tolerances, resulting in faster tapping, longer tap life, reduced breakage, and finely crafted threads.
Three-flute taps distribute stress over a triangular area for easier starting and straighter hand tapping, and are stronger for hard or tough steels.
Two-flute taps provide more chip space beneficial for tapping soft steels and are versatile for both machine and hand turning applications.
Not magic, just perfect! When we first tried these taps (recommended by customer Dan Baldwin), we thought they were extra hard, coated or treated somehow . . . they're that much better than any tap we've ever used before. But, the U.S. company that's been making them since 1912 says the secret is plain old care and quality control. The ground threads are held to incredibly tight tolerances for roundness, thread spacing, etc. Result is, all the teeth cut equally so the whole tapping process goes faster, the taps last longer, breakage is cut way down and the threads are the finest you'll ever see. Try them; you'll tap more holes per tap than you thought possible! Premium Three-Flute Taps - Divides the tapping stresses over a triangular area, making it easy to start and to keep straight when tapping by hand. Stronger than two-flute taps, so preferable for hard or tough steels. Premium Two-Flute Taps - Spreads the tapping stress over two large flutes, with more chip space than three-flute taps a real help when tapping soft steels. A popular machine tap, great when hand turned, too.
SPECS: H-2, High Speed tool steel.
More...
Customer ratings for REIFF & NESTOR COMPANY 8-32 PLUG THREE-FLUTE TAP
Number of ratings: 1
From brownells.com: 1
Average rating: 5
Did the Job Well(12/01/2016)
I utilised the tap to tap a 0.150" hole in my Beretta 92fs slide, for the installation of the third screw for an aftermarket sight and rail system. I utilised a #31 Carbide Drill from Brownells. Starting the tap off in my drill press to ensure it was perfectly aligned with the drilled hole I then finished the job off by hand. This tap did the job and a practice tap well.